苏州混凝土水泥制品研究院有限公司

头部文案

发布时间:2020-01-06 00:00:00
全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊(光盘版)全文收录期刊
华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊

杂志简介

主办单位: 苏州混凝土水泥制品研究院有限公司
中国混凝土与水泥制品协会
  • 主编 : 李建华
  • 常务副主编 : 王春蓉
  • 刊期 : 月刊
  • 电话 : 0512-68285716
  • E-mail : sccpitg@126.com
  • 国内统一刊号(CN) : 32-1173/TU
  • 国际标准刊号(ISSN) : 1000-4637
  • 邮发代号 : 28-80
hunnitu 微信公众号
hunnitu 扫码订购杂志

混凝土研究

复合掺合料对水泥胶砂流动度和长期强度的影响
复合掺合料对水泥胶砂流动度和长期强度的影响
  • 蒋 鹤1,李树繁1,王小明1,高 超2,3,周永祥2,3,周郅人2,3
2021年第1期
摘要
引用本文
摘   要:采用粉煤灰(F)、矿渣粉(Sl)、硅灰(Si)和石灰石粉(L)复合组成5种复合矿物掺合料,研究了复合掺合料的组成和掺量对水泥胶砂流动度、长期抗压强度和抗折强度的影响。结果表明:掺粉煤灰和石灰石粉的FSlL和FL复合掺合料流动性较好,流动度比达到110%以上;掺硅灰的FSlSi和SlSiL复合掺合料流动性较差,流动度比在80%左右;5种复合掺合料在30%、40%、50%掺量下,胶砂试件720 d抗压强度和抗折强度均达到纯水泥试件的110%~120%;FSlSi、FSl和FL复合掺合料随着掺量的提高,长龄期胶砂抗压强度有所增加,抗折强度发展趋势与抗压强度相同;SlL和SlSiL复合掺合料随着掺量的提高,长龄期胶砂抗压和抗折强度均略有下降。 Abstract: Five kinds of composite admixtures were composed of fly ash (F), slag powder (Sl), silica fume (Si) and limestone powder (L) in varying proportions. The effects of composition and content of composite admixtures on fluidity, long-term compressive strength and flexural strength of cement mortar were studied. The research results show that the flow properties of FSlL and FL composite admixtures that contain fly ash and limestone powder are superior, and the fluidity ratio is above 110%. The flow properties of FSlSi and SlSiL composite admixtures with silica fume are inferior, and the fluidity is about 80%. The compressive strength and flexural strength of 720 d mortar specimen with five kinds of composite admixtures are 110%~120% of those of pure cement specimen when the dosages of composite admixtures separately are 30%, 40% and 50%. With the increase of the content of FSlSi, FSl or FL, the long-term compressive strength of mortar increases, and the development trend of flexural strength is the same as that of compressive strength. As the increase of the content of SlL and SlSiL, the long-term compressive strength and flexural strength of mortar decrease slightly.
蒋鹤,李树繁,王小明,等.复合掺合料对水泥胶砂流动度和长期强度的影响[J].混凝土与水泥制品,2021(1),1-6. JIANG H,LI S F,WANG X M,et al.Effect of Composite Admixtures on Fluidity and Long-term Strength of Cement Mortar[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):1-6.
混凝土塑性损伤模型参数的选取与验证计算
混凝土塑性损伤模型参数的选取与验证计算
  • 张 飞,马建勋,南 燕
2021年第1期
摘要
引用本文
摘   要:基于塑性损伤的混凝土本构模型,现行规范与ABAQUS软件给出的应力-应变关系表达式有所不同。在对两种表达式进行分析对比的基础上,对ABAQUS软件自带的混凝土塑性损伤模型(CDP模型)参数选取进行了分析,并给出了该模型参数的选取和调整方法。为了验证模型参数选取的合理性和可靠性,采用ABAQUS软件对算例试验构件进行了有限元数值分析,并将数值分析所得的荷载-位移曲线与试验测试曲线进行对比。结果表明:所选的参数能够满足数值分析的精度要求。 Abstract: For the concrete constitutive model based on the plastic damage, the stress-strain relationship expression in the current code is different from the expression given by ABAQUS software. Based on the analysis and comparison of the two expressions, the parameter selection in the CDP model of ABAQUS software was analyzed, and the selection and adjustment methods of the model parameters were given. In order to verify the rationality and reliability of model parameter selection, ABAQUS software was used to carry out a finite element numerical analysis on the example test members, and the load-displacement curve obtained from the numerical analysis was compared with the test curve. The results show that the parameters selection described can meet the accuracy requirements of numerical analysis.
张飞,马建勋,南燕.混凝土塑性损伤模型参数的选取与验证计算[J].混凝土与水泥制品,2021(1),7-11,29. ZHANG F,MA J X,NAN Y.Parameters Selection and Verification Calculation of Concrete Plastic Damage Model[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):7-11,29.
纳米SiO2对不同孔隙率下透水混凝土性能的影响
纳米SiO2对不同孔隙率下透水混凝土性能的影响
  • 张粉芹,申明昊,杨程鸿,陈 越,许浩然
2021年第1期
摘要
引用本文
摘   要:采用体积法设计孔隙率分别为15%、20%、25%的透水混凝土,研究了纳米SiO2(NS)对透水混凝土抗压强度、透水系数的影响规律。总结了不同孔隙率下透水混凝土的破坏形式,并分析了破坏机理。结果表明:随着NS掺量的增加,三种孔隙率下透水混凝土的抗压强度均呈先增加后减少的趋势,在NS掺量为1.0%时,抗压强度都达到最大值;NS对透水混凝土7 d抗压强度的提升效果比28 d更显著;随着孔隙率逐渐增大,NS对透水混凝土抗压强度的改善效果逐渐增强,而对透水系数的提升效果逐渐减弱;从透水混凝土的破坏形式上来看,随着孔隙率逐渐增大,掺入适量NS的透水混凝土,其骨料处断裂的现象相较未掺NS时逐渐增多。 Abstract: The pervious concrete with porosity of 15%, 20% and 25% was designed by using the volume method, and the effect of nano-SiO2 (NS) on the compressive strength and hydrological permeability of pervious concrete under three porosities was studied. The failure modes and mechanism of pervious concrete under different porosities were summarized and analyzed. The research results show that with the increase of the NS content, the compressive strength of pervious concrete under the three porosities first increases and then decreases, and the compressive strength reaches the maximum when the NS content is 1.0%. The improvement effect of 7 d compressive strength of pervious concrete is more significant than that of 28 d. As the porosity gradually increases, the improvement effect of NS on compressive strength of pervious concrete gradually increases, but the effect of increasing the hydrological permeability gradually decreases. From the terms of the damage form, as the porosity gradually increases, the fracture phenomenon of the pervious concrete which mixed with an appropriate amount of NS will gradually increase than the case without NS.  
张粉芹,申明昊,杨程鸿,等.纳米SiO2对不同孔隙率下透水混凝土性能的影响[J].混凝土与水泥制品,2021(1),12-16. ZHANG F Q,SHEN M H,YANG C H,The Effect of Nano-SiO2 on Propereies of Pervious Concrete Under Different Porosities[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):12-16.
定形相变材料的制备及对混凝土耐高温性能的影响
定形相变材料的制备及对混凝土耐高温性能的影响
  • 王永伟1,唐百晓2,王伟涛3
2021年第1期
摘要
引用本文
摘   要:为了提高混凝土结构的耐高温性能,从混凝土自身的储热性能出发,制备了一种定形相变材料,并研究了该相变材料对混凝土导热性能和高温后力学强度的影响。结果显示:硫酸铝铵掺量越高,相变材料的相变焓越大,当其掺量超过70%时,差示扫描量热法(DSC)特征参数趋于稳定;定形相变材料具有较好的热稳定性,且高温下硫酸铝铵和SiO2并未发生化学反应;相变材料的加入能提高混凝土的储能密度,降低其导热系数,混凝土内部的温度随相变材料掺量的增多而逐渐降低;当相变材料掺量小于6.5%时,相变材料的加入能明显提高混凝土高温后的强度,而当相变材料掺量大于6.5%时,再提高其掺量对混凝土耐高温性能的改善作用有限。 Abstract: In order to improve the high temperature performance of concrete structure, a stationary phase transition material based on the heat storage properties of concrete was prepared, and the influence of phase transition material on thermal properties and mechanical strength after high temperature were studied. The results show that the higher the content of NH4Al(SO4)2·12H2O, the greater the phase transition enthalpy of the phase transition material. When the amount of admixture exceeds 70%, the DSC characteristic parameters tend to be stable. The stationary phase transition material has good thermal stability, and there is no chemical reaction between NH4Al(SO4)2·12H2O and SiO2 at high temperatures. The addition of phase transition materials can increase the energy storage density of concrete, and reduce its thermal conductivity. The temperature inside of the concrete gradually decreases with the increase of the amount of phase transition materials. When the amount of phase change material is less than 6.5%, the addition of phase change material can obviously increase the strength of the concrete after high temperature. When the amount of phase change material is greater than 6.5%, the effect of the amount of phase change material on the high temperature resistance of concrete is limited.
王永伟,唐百晓,王伟涛.定形相变材料的制备及对混凝土耐高温性能的影响[J].混凝土与水泥制品,2021(1),17-20. WANG Y W,TANG B X,WANG W T.The Preparation of Stationary Phase Transition Materials and Its Effect on the High Temperature Resistance of Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):17-20.
PMMA聚合物复合混凝土的制备及机理研究
PMMA聚合物复合混凝土的制备及机理研究
  • 陈宇婷1,2,杨 周1,李 静1,李耀环1,梁 欢2
2021年第1期
摘要
引用本文
摘   要:将有机聚合物单体与普通水泥通过常温共聚的方法制备了一种新型复合混凝土,可以有效解决常见聚合物改性混凝土相容性差、过程复杂及成本高等问题。试验结果表明:当水泥改性剂用量2.0 %、甲基丙烯酸甲酯掺量30 %时,混凝土的工作性、强度及抗渗性等综合性能达到最优。另外,通过扫描电镜、表面接触角和红外光谱分析等方法,研究了甲基丙烯酸甲酯与改性胶材互穿网络式共聚机理。 Abstract: A new type of composite concrete was prepared by copolymerization of organic polymer monomer and ordinary cement at room temperature, which could effectively solve the problems of poor compatibility, complex process and high cost of common polymer modified concrete. The results show that when the dosage of cement modifier is 2.0%, the dosage of methyl methacrylate is 30%, and the comprehensive properties such as workability, strength and impermeability of the condensate are optimized. In addition, the IPN copolymerization mechanism of MMA and modified cementitious materials was studied by means of SEM, surface contact angle and infrared spectrum.
陈宇婷,杨周,李静,等.PMMA聚合物复合混凝土的制备及机理研究[J].混凝土与水泥制品,2021(1),21-25. CHEN Y T,YANG Z,LI J,et al. Preparation and Mechanism Research of PMMA Polymer Composite Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):21-25.
相变储能砂浆的制备和力学性能试验研究
相变储能砂浆的制备和力学性能试验研究
  • 边亚东1,王盟盟1,吕亚军2,梁 振1,王克俭1
2021年第1期
摘要
引用本文
摘   要:以石蜡为相变材料,膨胀珍珠岩做支撑基体,制备了膨胀珍珠岩-石蜡复合相变材料,采用苯丙乳液对复合相变材料封装,利用封装后的复合相变材料替代部分细骨料制备了相变储能砂浆,并对其力学性能进行了试验研究。结果表明:苯丙乳液对复合相变材料有很好的封装作用;随着复合相变材料替代率的增大,相变储能砂浆的力学性能下降;当复合相变材料替代率为70%时,相变储能砂浆的抗压强度为12.7 MPa,满足规范中对建筑围护结构砂浆的要求。研究成果可为相变材料在建筑中的应用提供参考。 Abstract: Using paraffin as the phase change material and expanded perlite as the support matrix, the expanded perlite-paraffin composite phase change material was prepared, and the composite phase change material was encapsulated with styrene-acrylic emulsion, and the encapsulated composite phase change material was used to replace part of the fine aggregate to prepare the phase change energy storage mortar, and the mechanical properties of the phase change energy storage mortar were tested. The results show that styrene-acrylic emulsion has a good encapsulation effect on the expanded perlite composite phase change material. As the replacement rate of composite phase change material increases, the mechanical properties of the phase change energy storage mortar decrease. When the replacement rate is 70%, the compressive strength of the phase change energy storage mortar is 12.7 MPa, which meets the requirements of the building envelope mortar in the code. The research results can provide references for the application of phase change materials in construction.
边亚东,王盟盟,吕亚军,等.相变储能砂浆的制备和力学性能试验研究[J].混凝土与水泥制品,2021(1),26-29. BIAN Y D,WANG M M,LYU Y J,et al.Experimental Study on Preparation and Mechanical Properties of Phase Change Energy Storage Mortar[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):26-29.
利用碱性电解水激发砂浆中矿粉活性的研究
利用碱性电解水激发砂浆中矿粉活性的研究
  • 李长江1,刘桂宾1,于 琦1,李秋义2,王 亮2
2021年第1期
摘要
引用本文
摘   要:利用碱性电解水制备矿粉砂浆,研究了不同取代率矿粉对砂浆工作性和力学性能的影响,结合XRD分析,评价了利用碱性电解水激发矿粉的活性和改善矿粉砂浆性能的可行性。结果表明:碱性电解水矿粉砂浆的工作性和力学性能均优于自来水矿粉砂浆;当矿粉取代率为20%时,碱性电解水矿粉砂浆的28 d抗折强度和抗压强度较自来水矿粉砂浆分别提高了11.9%和23.5%;碱性电解水矿粉砂浆中存在多钙钾石膏和钾长石,且水化硅酸钙和铝酸钙矿物的衍射峰显著强于自来水矿粉砂浆。 Abstract: The alkaline electrolyzed water was used as mixing water to prepare slag powder mortar, and the effect of different replacement ratios of slag powder on the workability and mechanical properties of mortar were studied.  Combined with XRD analysis, the feasibility of using alkaline electrolyzed water to stimulate the early activity of slag powder and improve the performance of slag powder mortar was evaluated. The results show that the workability and strengths of alkaline electrolyzed water slag powder mortar are both superior to those of tap water slag powder mortar. When the replacement ratio of slag powder is 20%, the 28 d flexural strength and compressive strength of alkaline electrolyzed water slag powder mortar are 11.9% and 23.5% higher than those of tap water slag powder mortar, respectively. Polycalcium potassium gypsum and potassium feldspar are found in alkaline electrolyzed water slag powder mortar, and the diffraction peaks of calcium silicate and calcium aluminate minerals are significantly stronger than those of tap water slag powder mortar.
李长江,刘桂宾,于琦,等.利用碱性电解水激发砂浆中矿粉活性的研究[J].混凝土与水泥制品,2021(1):30-33,47. LI C J,LIU G B,YU Q, Effect of Alkaline Electrolyzed Water on Activating Activity of Slag in Mortar[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):30-33,47.
养护条件对MgO膨胀剂膨胀性能的影响
养护条件对MgO膨胀剂膨胀性能的影响
  • 周龙龙,王 舜,苗 苗,冯竟竟,李思琪,孙传珍
2021年第1期
摘要
引用本文
摘   要:对水养、水养转干养和干湿循环养护条件下不同活性MgO膨胀剂(MEA)膨胀性能及水养条件下不同龄期膨胀净浆微观孔结构进行了研究。结果表明:MEA活性越高,其早期膨胀率增速越大,但后期膨胀率增速越慢;水养转干养条件下,干空膨胀落差与MEA活性成正比;干湿循环养护条件下,高活性MgO的补偿收缩效能高于低活性MgO。掺MEA浆体中大于50 nm孔隙的增加可能是砂浆产生膨胀的原因之一;28~180 d时,MEA主要细化的孔区间为20~200 nm。 Abstract: The expansion properties of different active MgO expansive agent (MEA) under the conditions of water curing, water curing to dry curing and dry and wet cycle curing and micro pore structure of different age expansive paste under water condition were studied. The results show that the higher the activity of MEA, the higher the early expansion rate, but the slower the later expansion rate. Under the condition of water curing to dry curing, dry air expansion drop is directly proportional to MEA activity. Under the condition of dry and wet cycle curing, the compensation contraction efficiency of high active MgO is higher than that of low active MgO. The addition of MEA promotes the increase of pores larger than 50 nm in the paste, which may be one of the reasons for the expansion of the mortar. At the age of 28 to 180 days, the main refining pores of MEA are between 20 nm and 200 nm.
周龙龙,王舜,苗苗,等.养护条件对MgO膨胀剂膨胀性能的影响[J].混凝土与水泥制品,2021(1):34-38 ZHOU L L,WANG S,MIAO M,et al.The Effect of Different Curing Conditions on the Expansive Properties of MgO Expansive Agent[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):34-38.

水泥混凝土制品

预制高性能混凝土(HPC)电缆沟的研制
预制高性能混凝土(HPC)电缆沟的研制
  • 钟维军1,金 权1,王建民2,巴明芳2,乐亚光3,徐圣烨3
2021年第1期
摘要
引用本文
摘   要:通过研究硅灰、Ⅰ级粉煤灰及S95矿渣粉掺量及掺入方式对高性能混凝土(HPC)的影响,确定了Ⅰ级粉煤灰和S95矿渣粉以1∶1复掺制备HPC预制装配式电缆沟。针对不同服役条件,设计了预制HPC电缆沟U型截面形式,并对其承载力进行了试验验证。结果表明:预制HPC电缆沟的关键部位强度及变形均满足承载力及变形要求,可为电缆沟的预制装配化应用提供参考。 Abstract: According to the influence of silica fume, grade Ⅰ fly ash and S95 slag powder on the performance of high performance concrete (HPC), it is determined that the best mix proportion of grade Ⅰ fly ash and S95 slag powder is 1∶1. For different service conditions, the U-shaped section of HPC prefabricated cable trench is designed and prepared, and the bearing capacity is verified by simulation and test. The results show that the strength and deformation of key parts of HPC prefabricated cable trench can meet the requirements of bearing capacity and deformation, which can provide a reference for application of  the prefabrication and assembly process of cable trench.
钟维军,金权,王建民,等.预制高性能混凝土(HPC)电缆沟的研制[J].混凝土与水泥制品,2021(1):39-43. ZHONG W J,JIN Q,WANG J M,et al.Development of Prefabricated Cable Trench with High Performance Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):39-43.
清水镜面混凝土构件的生产工艺研究与应用
清水镜面混凝土构件的生产工艺研究与应用
  • 朱敏涛,周 强,朱安标,金自清,王明牛
2021年第1期
摘要
引用本文
摘   要:为研发清水镜面混凝土构件的生产技术,详细介绍了配合比设计、构件模具、饰面保护等技术,对比论证了不同制作工艺对清水镜面混凝土构件饰面效果的影响,最终确定了清水镜面混凝土构件的制作工艺,并结合实际工程案例进行了应用与验证。 Abstract: In order to develop the production technology of fair-faced concrete components, the mix proportion design, component mold, facing protection and other technologies are introduced in detail, the influence of different production processes on the finish effect of fair-faced concrete components are compared and demonstrated, and finally the production process of fair-faced concrete components are determined, and the application and verification combined with practical engineering cases are carried out.
朱敏涛,周强,朱安标,等.清水镜面混凝土构件的生产工艺研究与应用[J].混凝土与水泥制品,2021(1):44-47. ZHU M T,ZHOU Q,ZHU A B,et al.Research and Application of Production Technology on Specular Fair-faced Concrete Components[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):44-47.
预制混凝土生态组合护岸制品的设计与应用
预制混凝土生态组合护岸制品的设计与应用
  • 郭 健1,金元林2,许金龙2,吴 健3,陈 铖3
2021年第1期
摘要
引用本文
摘   要:为实现装配化、生态化和景观化,从结构设计和生态设计出发,提出了一种新型预制混凝土生态组合护岸制品,重点介绍了该类护岸制品的连接构造、结构配筋、生态仓布置,最后基于实际工程,介绍了其生产流程和应用效果,以期丰富水利工程护岸的结构形式,提高相应工程的社会和经济效益。 Abstract: In order to realize the aim of assembly, ecology and landscape, a new type of precast concrete ecological composite revetment is proposed from the structural design and ecological design. The connection structure, structural reinforcement and ecological bin layout are mainly introduced. Finally, based on the actual project, the production process and application effect are introduced, so as to enrich the structural form of the revetment of water conservancy projects and improve the social benefit and economic benefits of the corresponding projects.
郭健,金元林,许金龙,等.预制混凝土生态组合护岸制品的设计与应用[J].混凝土与水泥制品,2021(1):48-49,66. GUO J,JIN Y L,XU J L,et al.Design and Development of Prestressed Concrete Ecological Combination Revetment[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):48-49,66.

纤维水泥及制品

海水冻融侵蚀下PVA-纳米SiO2混凝土性能试验研究
海水冻融侵蚀下PVA-纳米SiO2混凝土性能试验研究
  • 孔令康1,2,孙 敏1,2
2021年第1期
摘要
引用本文
摘   要:采用快冻法研究了海水冻融环境下PVA纤维和纳米SiO2对混凝土抗冻性能的影响。结果表明:每25次冻融循环结束后,不同类型混凝土的相对动弹性模量和抗压强度剩余比都有不同程度的下降;PVA纤维和纳米SiO2均能提升混凝土的抗冻性能;单掺PVA纤维或纳米SiO2试验组的抗冻性普遍低于PVA-纳米SiO2混掺试验组;混掺0.1% PVA纤维和1.0%纳米SiO2试验组的抗冻性最好。 Abstract: The effect of PVA fiber and nano-SiO2 on the frost resistance of concrete under the seawater freeze-thaw erosion was studied by the rapid freezing method. The results show that after every 25 freeze-thaw cycles, the relative dynamic elastic modulus and compressive strength residual ratio of various types of concrete decrease to varying degrees. Both PVA fiber and nano-SiO2 can improve the frost resistance of concrete. The frost resistance of the PVA fiber or nano-SiO2 test group is generally lower than that of the PVA-nano-SiO2 mixed test group. The frost resistance of the test group mixed with 0.1% PVA fiber and 1.0% nano-SiO2 is the best.
孔令康,孙敏.海水冻融侵蚀下PVA-纳米SiO2混凝土性能试验研究[J].混凝土与水泥制品,2021(1):50-53. KONG L K,SUN M.Experimental Study on the Performance of PVA-nano-SiO2 Concrete Under the Seawater Freeze-thaw Erosion[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):50-53.
竹叶纤维混凝土工作性和力学性能试验研究
竹叶纤维混凝土工作性和力学性能试验研究
  • 王贵忠
2021年第1期
摘要
引用本文
摘   要:研究了不同掺量(0、0.3%、0.5%、0.7%、0.9%和1.1%)的竹叶纤维对混凝土工作性和力学性能的影响。结果表明:随着竹叶纤维掺量的增加,混凝土的坍落度逐渐降低;混凝土吸水率随着竹叶纤维掺量增加而增加;竹叶纤维的掺入对混凝土抗压强度不利,但有利于提高混凝土的劈裂抗拉强度和抗折强度;综合考虑各种因素,建议竹叶纤维的最佳掺量取0.7%。 Abstract: The effects of bamboo leaf fiber with different content(0, 0.3%, 0.5%, 0.7%, 0.9% and 1.1%) on the workability and mechanical properties of concrete were studied. The results show that with the increase of bamboo leaf fiber content, the slump of concrete gradually decreases. The water absorption rate of concrete increases with the increase of bamboo leaf fiber content. The incorporation of bamboo leaf fiber is unfavorable to the compressive strength of concrete, but it can improve the splitting tensile strength and flexural strength of concrete. Considering various factors, it is recommended that the optimal content of bamboo leaf fiber is 0.7%.
王贵忠.竹叶纤维混凝土工作性和力学性能试验研究[J].混凝土与水泥制品,2021(1):54-56. WANG G Z.Experimental Research on Workability and Mechanical Properties of Bamboo Leaf Fiber Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):54-56.
玄武岩纤维水泥固化风积砂材料温缩系数影响因素研究
玄武岩纤维水泥固化风积砂材料温缩系数影响因素研究
  • 闫景晨,王贵来,张 欣
2021年第1期
摘要
引用本文
闫景晨,王贵来,张欣.玄武岩纤维水泥固化风积砂材料温缩系数影响因素研究[J].混凝土与水泥制品,2021(1):57-60. YAN J C,WANG G L,ZHANG X.Study on Influencing Factors of Temperature Shrinkage Coefficient of Basalt Fiber Cement-solidified Aeolian Sand Materials[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):57-60.

房建材料及制品

碳纤维网与短切丝协同增强混凝土梁试验研究
碳纤维网与短切丝协同增强混凝土梁试验研究
  • 雷小磊,黄国栋,崔玉龙
2021年第1期
摘要
引用本文
摘   要:分析了碳纤维网的密度、层数与预埋位置以及碳纤维短切丝的长度与掺量对混凝土梁抗折性能的影响。结果表明:预埋碳纤维网与掺入碳纤维短切丝均能显著提升混凝土梁的抗折性能;碳纤维网密度为20 mm×20 mm时,距混凝土梁上表面125 mm时的增强效果最佳;双层碳纤维网的增强效果明显优于单层碳纤维网;同时掺入碳纤维短切丝可继续提升混凝土梁的抗折性能,且掺量2%、长度6 mm的碳纤维短切丝提升效果最佳。 Abstract: The weakness of flexural and crack resistance has seriously affected the wide application of concrete in engineering. The influence of the density, the number of layers and the embedded position of carbon fiber mesh, and the length and content of carbon fiber short-cut wire on the flexural performance of concrete beams were analyzed. The results show that both the embedded carbon fiber mesh and the incorporation of carbon fiber short-cut wire can significantly improve the flexural performance of concrete beams. When the density of carbon fiber mesh is 20 mm× 20 mm, the reinforcement effect is the best when it is 125 mm away from the upper surface of the concrete beam. The reinforcement effect of adding double carbon fiber mesh is better than that of single layer. At the same time, adding carbon fiber short-cut wire can continue to improve the flexural performance of concrete beam, and 2% content of carbon fiber short-cut wire with the length of 6 mm is the best.
雷小磊,黄国栋,崔玉龙.碳纤维网与短切丝协同增强混凝土梁试验研究[J].混凝土与水泥制品,2021(1):61-66. LEI X L,HUANG G D,CUI Y L.Experimental Study on Reinforced Concrete Beam with Carbon Fiber Mesh and Short-cut Wire[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):61-66.
钢板-超高性能混凝土梁有限元分析研究
钢板-超高性能混凝土梁有限元分析研究
  • 赵 明1,黄飞新1,刘琼伟2,邱明红2,黄 政2,胡伟业2,邵旭东2
2021年第1期
摘要
引用本文
摘   要:为了研究钢板-超高性能混凝土(UHPC)组合梁的抗弯性能,在钢板-UHPC-T组合梁方案下,以钢板厚度、钢板强度等级、UHPC抗拉强度和UHPC极限拉应变为参数,利用ABAQUS软件进行了有限元分析。结果表明:钢板厚度和钢板强度等级的改变对组合梁抗弯承载力的提高作用较为明显;UHPC抗拉强度的提高可以适当提高开裂荷载;UHPC极限拉应变的增加可适当提高梁体的延性。 Abstract: In order to study the flexural performance of steel plate-ultra-high performance concrete(UHPC) composite beams, under the plan of steel plate-UHPC-T composite beams, the finite element analysis was carried out with ABAQUS finite element analysis software, taking steel plate thickness, steel plate strength grade, UHPC tensile strength and UHPC ultimate tensile strain as parameters. The results show that the change of steel plate thickness and steel plate strength grade have obvious effects on the improvement of the flexural bearing capacity of composite beams. The increase of UHPC tensile strength can appropriately increase the cracking load, and the increase of UHPC ultimate tensile strain can appropriately improve the ductility of the beam.
赵明,黄飞新,刘琼伟,等.钢板-超高性能混凝土梁有限元分析研究[J].混凝土与水泥制品,2021(1):67-71. ZHAO M,HUANG F X,LIU Q W,Finite Element Analysis of Steel Plate-ultra-high Performance Concrete Beams[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):67-71.
装配式大板结构老旧住宅楼的修复加固研究
装配式大板结构老旧住宅楼的修复加固研究
  • 厉见芬1,李书进1,肖耀军2
2021年第1期
摘要
引用本文
摘   要:以常州市某老旧小区的28栋装配式大板结构住宅楼为例,在原结构存在缺陷和工程造价、施工工期、对住户的影响等多重技术难题条件下,基于房屋渗漏现状和检测报告,进行了原因分析,提出了合理的修复加固方案。研究成果对类似老旧小区的综合性能提升和改造关键技术有一定的参考价值。 Abstract: Taking 28 residential buildings with prefabricated large panel structure in an old residential in Changzhou as an example, and considering multiple technical problems such as defects of original structure, project cost, construction period and impact on households, based on housing leakage status and inspection report, the causes are analyzed, and reasonable restoration and reinforcement program is put forward. The research results have a certain reference value for the improvement of comprehensive performance and the key technology of transformation in similar old residential areas.
厉见芬,李书进,肖耀军.装配式大板结构老旧住宅楼的修复加固研究[J].混凝土与水泥制品,2021(1):72-74,79. LI J F,LI S J,XIAO Y J.Research on Restoration and Reinforcement of Old Residential Buildings with Prefabricated Large Panel Structure[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):72-74,79.
可再分散乳胶粉及玻化微珠对泡沫混凝土性能的影响
可再分散乳胶粉及玻化微珠对泡沫混凝土性能的影响
  • 马建斌
2021年第1期
摘要
引用本文
摘   要:泡沫混凝土(FC)作为一种轻质多孔材料具有优良的保温隔热效果,将其用作建筑保温墙体材料可以有效降低建筑能耗。利用可再分散乳胶粉(RDL)和玻化微珠(GB)改性FC,研究了RDL和GB单独取代以及RDL和GB共同取代快硬硫铝酸盐水泥对FC干密度、抗压强度、导热系数和拉伸黏结强度的影响。结果表明:RDL可以显著提高FC的拉伸黏结强度,GB可以显著降低FC的干密度和导热系数;RDL和GB共同取代水泥时更有利于改善FC的综合性能;RDL和GB总掺量为3%时改善效果最佳, 此时FC的干密度为311.7 kg/m3,抗压强度为0.42 MPa,导热系数为0.078 3 W/(m·K),拉伸黏结强度为0.113 9 MPa。 Abstract: As a kind of lightweight porous material, foam concrete(FC) has excellent thermal insulation effect and can be used as building insulation wall material to effectively reduce building energy consumption. Using redispersible latex powder(RDL) and glass beads(GB) to modify FC, and the effect of RDL and GB alone substitution and RDL and GB joint substitution of rapid hardening sulphoaluminate cement on the dry density, compressive strength, thermal conductivity and tensile bond strength of FC were explored. The results show that RDL can significantly improve tensile bond strength of FC, and GB can significantly reduce dry density and thermal conductivity of FC. When RDL and GB replace cement together, it is more conducive to improve the comprehensive performance of FC. The improvement effect is best when the total content of RDL and GB is 3%. At this time, the dry density, compressive strength, thermal conductivity and tensile bond strength of FC are 311.7 kg/m3, 0.42 MPa, 0.078 3 W/(m·K), and 0.113 9 MPa, respectively.
马建斌.可再分散乳胶粉及玻化微珠对泡沫混凝土性能的影响[J].混凝土与水泥制品,2021(1):75-79. MA J B.Influence of Redispersible Latex Powder and Glass Beads on the Properties of Foam Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):75-79.

检测及试验方法研究

暂时没有内容信息显示
请先在网站后台添加数据记录。

节能与环保

再生骨料黏附砂浆含量对人工成孔透水混凝土抗冻性的影响
再生骨料黏附砂浆含量对人工成孔透水混凝土抗冻性的影响
  • 臧旭航1,朱平华1,王新杰1,陈春红1,刘 惠1,许 鸣2
2021年第1期
摘要
引用本文
摘   要:研究了不同冻融工况下黏附砂浆含量对高强再生透水混凝土抗冻耐久性的影响,并用SEM对其微观机理进行了分析。结果表明,300次冻融循环后,以相对动弹性模量不低于60%和抗压强度损失率不高于25%为失效准则,确定了再生粗骨料黏附砂浆的界限含量分别为41.19%和43.89%。在设计使用年限分别为100年、50年和30年的严寒地区高度饱水条件下,再生粗骨料最大黏附砂浆含量分别为33.00%、38.94%和40.27%。 Abstract: The influence of attached mortar content on the frost resistance of high strength recycled pervious concrete under different freeze-thaw conditions was studied, and the microscopic mechanism was analyzed by SEM. The results show that after 300 freezing-thawing cycles, taking the relative dynamic elastic modulus of not less than 60% and the loss rate of compressive strength not more than 25% as the failure criterion, the limit content of recycled coarse aggregate attached mortar is determined to be 41.19% and 43.89%, respectively. When the designed service life is 100 years, 50 years and 30 years respectively, the maximum attached mortar content of recycled coarse aggregate applied for structural concrete is 33.00%, 38.94% and 40.27%, respectively.
臧旭航,朱平华,王新杰,等.再生骨料黏附砂浆含量对人工成孔透水混凝土抗冻性的影响[J].混凝土与水泥制品,2021(1):80-84,99. ZANG X H,ZHU P H,WANG X J,et al.Effect of Recycled Aggregate Attached Mortar Content on Frost Resistance of Artificial Porous Pervious Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):80-84,99.
不同机制砂微观形貌和胶砂性能研究
不同机制砂微观形貌和胶砂性能研究
  • 孙星海1,刘 泽1,王军伟2,姜启衎1
2021年第1期
摘要
引用本文
摘   要:为更好研究机制砂的合理应用,选取了3种不同岩性的机制砂,通过分级筛分后调配成Ⅱ区中砂,设计了三种不同级配的机制砂。研究了不同机制砂的化学组成、矿物组成和微观形貌,以及不同机制砂对胶砂性能的影响。研究表明:不同机制砂颗粒的长径比和圆形度有一定的差异,个别粒级的参数差异较大;级配对钙基机制砂胶砂强度影响没有硅基机制砂显著;细度模数较大时,钙基机制砂胶砂强度大于硅基机制砂。 Abstract: In order to study the reasonable application of machine-made sands, 3 kinds of machine-made sands with different lithology were selected and mixed into the middle sands of Area Ⅱ through classification and screening, and three different gradations of machine-made sands were prepared. The influence on the properties of mortar of the chemical composition, mineral composition, and micro-morphology of machine-made sands, different machine-made sands were analyzed. The results indicate that the slenderness ratio and roundness of different machine-made sands are different, and the parameters of individual grades are also different. The effect of gradation on the strength of silicon-based sands is more significant than that of calcium-based sands. When the fineness modulus is larger, the strength of calcium-based machine-made sand is higher than that of silicon-based machine-made sand.
孙星海,刘泽,王军伟,等.不同机制砂微观形貌和胶砂性能研究[J].混凝土与水泥制品,2021(1):85-89. SUN X H,LIU Z,WANG J W,et al.Study on Microstructure and Mortar Properties of Different Machine-made Sands[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):85-89.
碱矿渣-粉煤灰砂浆的耐高温性能及孔结构研究
碱矿渣-粉煤灰砂浆的耐高温性能及孔结构研究
  • 高 帅1,吴岳峻2,唐海涛3,汪峻峰2,4,鲁刘磊3
2021年第1期
摘要
引用本文
摘   要:研究了不同粉煤灰掺量的碱矿渣-粉煤灰砂浆在20 ℃、200 ℃、400 ℃、600 ℃、800 ℃下力学性能的变化规律,并通过X射线衍射(XRD)、红外光谱(FTIR)和压汞法(MIP)分析了浆体的水化及孔结构。结果表明:掺粉煤灰可优化浆体的孔径分布,降低内部孔隙率,提高砂浆的耐高温性能,粉煤灰的适宜掺量为30%~50%;200 ℃时,掺30%粉煤灰砂浆的抗压强度最高,较20 ℃时提高了49.3%;600 ℃时,发生了固相反应,C-S-H凝胶减少,少害孔(20~50 nm)数量增加,砂浆保持了与20 ℃相当的抗压强度;800 ℃时,浆体生成大量钙黄长石,砂浆的抗压强度为20 ℃时的11.5%,基本失去工作性能。综合考虑,碱矿渣-粉煤灰砂浆的使用温度不宜超过600 ℃。 Abstract: The mechanical properties of alkali slag-fly ash mortar with different fly ash content at 20 ℃, 200 ℃, 400 ℃, 600 ℃, 800 ℃ were studied, and the hydration and pore structure were examined by using XRD, FTIR and MIP. The results show that adding fly ash can optimize the pore size distribution of the slurry, reduce the internal porosity, and improve the high-temperature resistance of the mortar, and the suitable blending amount is 30%~50%. At 200 ℃, the compressive strength of 30% fly ash mortar is the highest, which is 49.3% higher than that at 20 ℃. At 600 ℃, the mortar maintains the same compressive strength as 20 ℃, but the solid phase reaction occurs in the slurry, the number of less harmful pores (20~50 nm) increases and the C-S-H decreases. At 800 ℃, a large amount of calcium feldspar is formed in the slurry, and the compressive strength of the mortar is 11.5% of that at 20 ℃, which basically loses the working performance. Comprehensive consideration, the use temperature of alkali slag-fly ash mortar should not exceed 600 ℃.
高帅,吴岳峻,唐海涛,等.碱矿渣-粉煤灰砂浆的耐高温性能及孔结构研究[J].混凝土与水泥制品,2021(1):90-94. GAO S,WU Y J,TANG H T,et al. Study on High Temperature Resistance and Pore Structure of Alkali Slag-fly Ash Mortar[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):90-94.
蒸养机制砂混凝土的毛细吸水特性
蒸养机制砂混凝土的毛细吸水特性
  • 贡鑫茹1,2,3,李 东1,耿 健2,3
2021年第1期
摘要
引用本文
贡鑫茹,李东,耿健.蒸养机制砂混凝土的毛细吸水特性[J].混凝土与水泥制品,2021(1):95-99. GONG X R,LI D,GENG J.Water Absorption of Steam Curing Machine-made Sand Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(1):95-99.

展会预告

暂时没有内容信息显示
请先在网站后台添加数据记录。

论文推荐

珊瑚碎屑混凝土的强度特性及破坏形态分析
珊瑚碎屑混凝土的强度特性及破坏形态分析
  • 王 磊1,2,范 蕾1,2
2015年第1期
摘要
引用本文
摘   要:针对目前对珊瑚碎屑混凝土的力学机理尚不清晰这一问题,对不同龄期和水灰比的珊瑚混凝土试块进行了试验研究。试验结果表明,珊瑚混凝土具有早强、快硬的特点;同时,当水灰比减小到一定程度后,单纯减小水灰比并不能明显提高珊瑚混凝土的抗压强度。本文从材料特性、界面特性以及龄期和水灰比等方面着手,对珊瑚混凝土的强度特性作了详细分析,并介绍了珊瑚混凝土的破坏形态,从而可为珊瑚碎屑应用于海岛混凝土工程提供一定的参考依据。 Abstract: Currently, the mechanical mechanism of coral debris concrete is not well understood, so the research on coral concrete test block in different age and water cement ratio is carried out. The test results show that coral concrete has the characteristics of fast strengthening and hardening, and when the water cement ratio decreases to a certain extent, simply reducing the water cement ratio could not result in obvious additions of compressive strength of coral concrete. From the aspects of material properties, interface properties,age and water cement ratio, the strength characteristics of the coral concrete are analyzed in detail, and the failure pattern is introduced, which can provide reference for application of coral debris in island concrete engineering.
王磊,范蕾. 珊瑚碎屑混凝土的强度特性及破坏形态分析[J].混凝土与水泥制品,2015(1):1-4. WANG L,FAN L.Strength Characteristic and Failure Pattern Analysis on Coral Debris Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(1):1-4.
装配式结构用高强套筒灌浆料性能试验研究
装配式结构用高强套筒灌浆料性能试验研究
  • 汪秀石,杨智良,吴照学
2015年第2期
摘要
引用本文
摘   要:研究了装配式结构用高强套筒灌浆料的性能,通过试配并进行了流动度、强度和膨胀性试验,优选出了优化配合比。同时基于优化配合比进行了水胶比、减水剂掺量和膨胀剂掺量对高强套筒灌浆料性能影响的研究。试验结果表明,随着水胶比(W/B)增加,流动度逐渐增大,但强度随W/B增加呈现明显降低趋势;减水剂可有效改善流动度,而当掺量过多时对强度有一定的影响;膨胀率随膨胀剂掺量增加呈现增长趋势,但当掺量小于8.0%时,膨胀效果较差,掺量大于12.0%时,对流动度和强度产生不利影响。 Abstract: The properties of high-strong cementitious grout for prefabricated concrete structure are studied, and the optimum mix proportion is elected by the tests of fluidity, strength and expansibility. The roles of W/B and the content of superplasticizer or expanders in high-strong cementitious grout for coupler are researched respectively based on the optimum mix proportion. The test results show that the fluidity of the grout increases with the increasing of W/B, but its strength has significantly decreasing trend; the fluidity of the grout can be improved effectively by superplasticizer, but its strength will decrease if superplasticizer content is excessive; expansion rate of the grout increases with the increasing of expanders agent content, but the expansibility is poor when the content is less than 8.0%, and it has an adversely affect on the liquidity and strength of the grout when the content is greater than 12.0%.
汪秀石,杨智良,吴照学.装配式结构用高强套筒灌浆料性能试验研究[J].混凝土与水泥制品,,2015(2):65-68. WANG X S,YANG Z L,WU Z X.Experimental Research on Performance of High-strong Cementitious Grouting for Prefabricated Concrete Structure[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(2):65-68.
再生粗骨料强化处理工艺对再生混凝土性能的影响
再生粗骨料强化处理工艺对再生混凝土性能的影响
  • 郭远新,李秋义,孔 哲,岳公冰,韩 帅
2015年第6期
摘要
引用本文
摘   要:分别采用物理强化、化学强化和物理-化学复合强化三种不同的强化方式对简单破碎再生粗骨料进行强化处理,并采用100%取代天然碎石制备再生粗骨料混凝土,研究了不同强化处理后的再生粗骨料对混凝土工作性能、力学性能、抗渗透性能和抗碳化性能的影响。结果表明,经过强化处理的再生粗骨料混凝土的各项性能均有不同程度的提高,其中经二次物理强化处理后的再生粗骨料混凝土的用水量较天然碎石混凝土仅增加了6kg/m3,其抗压强度也达到最高值,接近于天然碎石混凝土;经二次物理强化和化学浸渍复合强化处理后的再生混凝土氯离子扩散系数降低了13.6%;三种不同的强化方式处理后,再生混凝土的碳化深度和碳化速度均有所降低。 Abstract: Three kinds of different strengthening technologies of physical enhancement, chemical enhancement and physical-chemical compound enhancement to strengthen the simple crushing recycled coarse aggregate are adopted, with 100% replaced natural gravel preparation of recycled coarse aggregate concrete, and the influences of the recycled coarse aggregate of different strengthening treatment on the working performance, mechanical properties, penetration resistance and carbonation resistance of concrete are studied. The research results show that, through strengthening treatment, recycled coarse aggregate concrete properties are improved to different degrees, the water consumption of recycled coarse aggregate concrete after the secondary physical strengthen treatment is only increased by 6kg/m3 than that of natural gravel concrete. The compressive strength also reached the highest value, close to the natural gravel concrete. The chloride ion diffusion coefficient of recycled concrete after the secondary physical-chemical compound strengthening treatment is reduced by 13.6%. The depth of carbonation and carbonation velocity decrease after three kinds of different strengthening treatments.
郭远新,李秋义,孔哲,等.再生粗骨料强化处理工艺对再生混凝土性能的影响[J].混凝土与水泥制品,2015(6):11-17. GUO Y X,LI Q Y,KONG Z,et al.Influence of Strengthening Treatment Technology of Recycled Coarse Aggregate on Performance of Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(6):11-17.
无砂再生透水混凝土配合比设计
无砂再生透水混凝土配合比设计
  • 张松涛1,贾欣悦2,宋 卓1,贾艳东1
2016年第12期
摘要
引用本文
张松涛,贾欣悦,宋卓,等.无砂再生透水混凝土配合比设计[J].混凝土与水泥制品,2016(12):6-12. ZHANG S T,JIA X Y,SONG Z,et al.Design on Mix Proportion of No-fines Pervious Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2016(12):6-12.
清水混凝土概念、研究现状、存在问题及配合比设计方 综述
清水混凝土概念、研究现状、存在问题及配合比设计方 综述
  • 郭 伟1,路林海2,王龙志3,崔 鑫3,王桂玲4,张海霞3
2016年第10期
摘要
引用本文
摘   要:20世纪90年代后期以来,清水混凝土研究及工程应用得到了长足发展,许多城市建成了清水混凝土标志性工程。为了更好地促进清水混凝土研究的深入、工程质量的提高,对清水混凝土的概念、研究现状、存在问题及现有的清水混凝土配合比设计方法进行了系统地梳理、总结。通过对清水混凝土现状的研究,可使相关领域技术人员认识到清水混凝土发展中存在的不足、明确清水混凝土的研究方向,以实现清水混凝土技术研究水平的再提高,有力地支持清水混凝土工程应用的进一步推广。 Abstract: Since the late 1990s, research and application of fair-faced concrete has made considerable progress, many cities built landmark projects of fair-faced concrete. In order to better promote the study in-depth and the engineering quality improvement of fair-faced concrete, the concept, research status, existing problems and mixture design methods of fair-faced concrete are systematically reviewed and summarized. Through the above study of fair-faced concrete, the relevant technicians recognize the lack of fair-faced concrete in the development and realize a clear research direction, in order to improve research level, strongly support further promotion of fair-faced concrete in engineering applications.
郭伟,路林海,王龙志,等.清水混凝土概念、研究现状、存在问题及配合比设计方法综述[J].混凝土与水泥制品,2016(10):23-27. GUO W,LU L H,WANG L Z,et al.Summary for Concept, Research Status, Existing Problems and Mix Proportion Design of Fair-faced Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2016(10):23-27.
新型装配式建筑构件生产及其施工技术的研究与应用
新型装配式建筑构件生产及其施工技术的研究与应用
  • 范 玉1,4,徐 华2,黄 新3,黄继战4,马北京4
2015年第12期
摘要
引用本文
摘   要:通过对建筑PC构件的设计、生产、施工进行的研究,对建筑PC构件进行了再设计及优化,确定了合理的PC构件生产及其施工工艺方案,并对影响PC构件质量的相关因素进行了分析。 Abstract: Through the research on design of PC component, production and construction,  construction PC component is carried out for re-design and optimization. The reasonable PC component production and construction technology program are determined, and factors affecting the quality of PC are analyzed.
范玉,徐华,黄新,等.新型装配式建筑构件生产及其施工技术的研究与应用[J].混凝土与水泥制品,2015(12):87-89. FAN Y, XU H,HUANG X,et al.Research and Application of Production for New Type of Prefabricated Construction Component and Its Construction Technology[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(12):87-89.
石墨烯纳米片对水泥基复合材料力学性能的影响
石墨烯纳米片对水泥基复合材料力学性能的影响
  • 王 辉,刘爱红,李 航
2015年第12期
摘要
引用本文
摘   要:采用球磨法将石墨烯纳米片分散在水泥基体中,研究了石墨烯纳米片掺量对水泥基材料抗折强度和抗压强度的影响。实验结果表明,适量的石墨烯纳米片可均匀分散在水泥基体中,通过桥联效应和拔出效应对水泥基材料起增强增韧作用,当石墨烯纳米片掺量为0.04%时,石墨烯纳米片与水泥基体界面结合良好,没有明显过渡层,试件3d抗折强度和抗压强度分别提高了22.84%和23.61%。 Abstract: Graphene nanoplatelets (GNPs) were dispersed in the cement matrix by milling method. The effect of GNPs with different contents on the flexural strength and compressive strength of composites were studied. The results showed that well dispersed GNPs improved the mechanical properties of cement composites, owing to GNPs excellent pulling-out and bridging capability. When the GNPs content was 0.04%, the mechanical properties of cement composites were increased obviously. Its flexural and compressive strength increased by 22.84% and 23.61% respectively compared with the referee sample after curing 3 days. The interface between graphene nanoplatelets and cement was bonded well, with no obvious transition layer.
王辉,刘爱红,李航.石墨烯纳米片对水泥基复合材料力学性能的影响[J].混凝土与水泥制品,2015(12):25-27. WANG H,LIU A H,LI H.Influence of Graphene Nanoplatelets on Mechanical Properties of Cement-based Composites[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(12):25-27.
大型智能PC构件自动化生产线简介
大型智能PC构件自动化生产线简介
  • 孙 红1,孙 健1,吴玉厚1,赵凯军2
2015年第3期
摘要
引用本文
建筑垃圾再生微粉的研究现状
建筑垃圾再生微粉的研究现状
  • 毛新奇1,2,屈文俊1,朱 鹏1
2015年第8期
摘要
引用本文
摘   要:建筑垃圾再生微粉各项性能的研究是推进建筑垃圾资源化的重要基础。根据近年来国内关于再生微粉的主要研究成果,对材料来源、制备工艺、工作性能、力学性能和耐久性能等方面进行了综述,并对相关的影响因素进行了探讨分析。 Abstract: Research on the properties of utilization regeneration of powder for construction waste is the important foundation of resource utilization of construction waste. Based on the recent domestic research on recycled powder, material source, manufacturing process, workability, mechanical properties and the durability are reviewed. Besides, the related influence factors are discussed and analyzed.
再生粗骨料及再生混凝土性能研究进展
再生粗骨料及再生混凝土性能研究进展
  • 甘 福1,周脉席1,3,濮 琦2
2018年第9期
摘要
引用本文
摘   要:结合国内外再生粗骨料混凝土的研究现状,综述了再生粗骨料性能、再生粗骨料混凝土性能、再生混凝土改性方法及改性后的混凝土性能等方面内容,展望了再生粗骨料及再生混凝土未来研究方向。 Abstract: Combining the study of recycled coarse aggregate concrete at home and abroad, the property of recycled coarse aggregate, the performance of recycled coarse aggregate concrete, the modified method of recycled concrete and the performance of modified concrete are reviewed, and the fature research direction on recycled coarse aggregate and recycled concrete is prospected.
甘福,周脉席,濮琦.再生粗骨料及再生混凝土性能研究进展[J].混凝土与水泥制品,2018(9):102-107. GAN F,ZHOU M X,PU Q.Research Progress of Performance of Recycled Coarse Aggregate and Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2018(9):102-107.

企业推荐

展会推荐

关闭 1

关注《混凝土与水泥制品》

总访问量 468,401   网站统计

官方微信公众号关闭
苏州混凝土水泥制品研究院有限公司

关于我们    |    联系我们    |    订购杂志    |    回到顶部

版权所有:中国混凝土与水泥制品网  苏ICP备10086386号   网站建设:中企动力 苏州

版权所有:中国混凝土与水泥制品网

苏ICP备10086386号

网站建设:中企动力 苏州